Inhaler



Gr. ELLIOTT.

(No Model.)

INHALER.

Patented May 12, 1891.

UNITED STATES ATENT OFFICE.

GEORGE ELLIOTT, OF MEADVILLE, PENNSYLVANIA.

INHALER.

SPECIFICATION forming part of Letters Patent No. 451,998, dated May 12, 1891.

Application filed December 17,1890. Serial No. 374,983. (No model.)

To aZZ 2072,0112, it may concern/.-

Be 1' t known that I, GEORGE ELLIOTT, a citizen of Meadville, in the county of Crawford and State of Pennsylvania, have invented certain new and useful Improvements in In halers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvementin inhalers, and more particularly to such as employ ether, chloroform, or other volatile liquids or substances used for inhalation as anaesthetics, the object of the invention being to provide an inhaler with an improved top or cover and to so construct the devices connected to said cover that the inhaler shall be efiectual in the performance of its functions.

A further object is to construct the device in such a manner that the amount of air admitted to the inhaler during its operation may be easily and effectually regulated and so that the air may be effectually excluded and the contents of the inhaler prevented from escape when the device is not in use.

With these objects in View the invention consists in certain novel features of construction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation of my improved inhaler, partly in section. Fig. 2 is a plan view of the top thereof. Fig. 3 is a view of a modification.

A represents a suitable vessel, of glass or other material, provided with a coVer'B, of copper, glass, or other material, hermetically united to the vessel A. The cover B is provided with an opening a, preferablyin proximity to the periphery thereof, and two openings b 0, one at either side of the opening a. The openings 1) c are provided with disk-covers d, which are pivotally connected to the top B and provided with knobs or buttons 6, by means of which said disks may be made to cover or uncover the openings 1) c. The opening a in the top B may be three-fourths of an inch in diameter, and projecting upwardly from this opening is a short tube or sleeve f of a diameter equal to that of the opening 0..

Secured to the inner face of the top or cover B is a pipe or tube j, which communicates with the opening I) and extends at its other endthrongh the openings a, said pipe or tube f being about one-half inch in diameter, thus leaving a space of one-eighth inch around the pipe or tube f within the tube or sleeve f. By this arrangement a mixture of four parts of air and five parts of the anaesthetic willbe emitted through the sleeve f. The proportion of air to be admitted may be regulated by the disk-valve (1 over the opening I). The opening a is provided for filling the vessel D represents a tube or barrel provided Wlth an elbow D in proximity to one end, said elbow being adapted to enter the sleeve f 1n the cover or top R and be secnred'thereln in any suitable manner. Located in that portion of the tube or barrel D from which the elbow D projects is an oscillatory cylindrical valve E, having a slot E therein and provided on its end with a knob E, by means of which to oscillate it and thus open and close communication between the barrel or tube D and the vessel A. A nitrous-oxide-gas inhaler of any preferred construction is fitted to the tube or barrel D and held in place by telescoping or otherwise.

In the form of the invention shown in Fig. 3 the cover is provided with openings g h. The opening 9 is covered wit-h a disk t, p votally connected to the top. The disk 2 1S provided with a knob or button by means of which to open and close the opening 9. opening h may be one-half of an inch in d1- ameter, and projecting upwardly from the opening is a short tube of a diameter equal to that of the opening h. A sleeve Z, preferably three-fourths of an inch in diameter, leavinga space one-eighth of an inch around the tube, is secured to the top and is prov1ded with a series of openings to admit external air to be mixed with the anaesthetic as it is emitted through the tube 70. An oscillatory cylindrical valve m is telescoped over the sleeve or tube Z and is providedwith a series of openings corresponding with the openings in the sleeve or tube Z and provided with a The knob or button 0 by means of which to oscillate it and thus open and close the openings in the sleeve or-tubc Z and regulate the amount of external air admitted through said series of openings in the sleeve or tube Z.

By constructing the device as above set forth the admixture of the anaesthetic and air is under the control of the user, and the admitted air does not come in contact with the anaesthetic either by passing through it or over it until the air and anaesthetic meet in the tube or sleeve above the top of the vessel A. There will be no Waste of the antes thetic, and there being none lost or used except that actually inhaled by the patient others present are prevented from inhaling it, as is the case When open apparatus is used.

Having fully described myinvention, What I claim as new, and desire to secure by Letters Patent,.is-

1. In an inhaler, the combination, with a suitable vessel having an opening, a sleeve surrounding the opening, and a tube entering the latter, of a valve constructed to admit air to the tube, and an inhaling-mask, substantially as set forth.

2. In an inhaler, the combination, with a suitable vessel and a top or cover provided with openings, of a pipe or tube communicating with one opening and leading into the other, and an inhaler-mask communicating with the pipe or tube, substantially as set forth.

3. In an inhaler, the combination, with a vessel, of a cover thereon having a series of openings, covers for two of said openings, a pipe communicating with one of said covered openings and leading through the uncovered opening, and a nitrous-oxide-gas inhaler communicating with said uncovered opening, substantially as set forth.

4. In an inhaler, the combination, With a vessel and a cover, of a mouth-piece communicating with said vessel, and an oscillatory cylindrical valve in the barrel of said mouthpiece for regulating the amount of material to be inhaled, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

G. ELLIOTT.

Witnesses:

MYRoN PARK DAVIS, WM. A. DOUGAN. 

